.ztree li span.button.addNode {
	margin-left: 2px;
	margin-right: -1px;
	background: url("../image/icon/add_node.png");
	vertical-align: top;
	*vertical-align: middle
}

.ztree li span.button.addAppliaction {
	margin-left: 2px;
	margin-right: -1px;
	background: url("../image/icon/application_add.png");
	vertical-align: top;
	*vertical-align: middle
}
.ztree li span.button.addModule {
	margin-left: 2px;
	margin-right: -1px;
	background: url("../image/icon/module_add.png");
	vertical-align: top;
	*vertical-align: middle
}
.ztree li span.button.addOperation {
	margin-left: 2px;
	margin-right: -1px;
	background: url("../image/icon/operation_add.png");
	vertical-align: top;
	*vertical-align: middle
}
.ztree li span.button.deleteNode {
	margin-left: 2px;
	margin-right: -1px;
	background: url("../image/icon/delete_node.png");
	vertical-align: top;
	*vertical-align: middle
}